Substance abuse disorder is characterized by a need for what?

Substance abuse disorder is characterized by a need for alcohol or drugs to function normally due to the physiological and psychological dependence on these substances. Individuals with this disorder often find that their ability to cope with everyday life is significantly impaired without the use of substances. Their brains may undergo changes from prolonged use, leading to cravings and withdrawal symptoms that reinforce the need to consume alcohol or drugs.

The other options do not accurately reflect the nature of substance abuse disorder. Socializing with peers, while it can be a part of an individual's lifestyle choices, does not define the disorder. Similarly, physical fitness and healthy eating habits are associated with general well-being and not specifically with the compulsive behaviors seen in substance abuse disorders. These choices would not demonstrate the compulsive reliance on substances that is a hallmark of the condition.